Hey Nick that’s a great catch. Looks like that is true within the context of Filter formulas. Filter(AND(X, Y)) is worse than Filter(X and Y). The reason behind this is that we have an optimizer that tries to look at filter formulas and speed up calculations that are repetitive but that optimizer doesn’t work if you use the and formula. So in your case, making this change did help a lot because the expressions in the filter formula were used multiple times. Thanks for catching this, I’ll add this to a list of tips for how to fix slow docs.